High Quality Monel K500 Supplier: PMI Test, UT Inspection & Third-Party Witness (SGS/TUV)

Shanghai COCESS Special Alloys Co., Ltd. (Shanghai Kesaishi Special Alloy) supplies Monel K‑500 (UNS N05500 / W.Nr. 2.4375 / AMS 4676)​ round bar, forged rod, disc/ring blanks and custom forgings with full in‑house PMI verification, Ultrasonic Testing per ASTM A388, and optional Third‑Party Inspection (TPI) by SGS / TÜV / BV / DNV. All material is sourced from qualified mills, fully traceable by heat number, and shipped with EN 10204 3.1 Mill Test Certificate as standard​ (upgradable to EN 10204 3.2 with TPI witness sign‑off). We support global export — EXW Shanghai, FOB Shanghai, CIF/CFR to your port, or DAP where permitted — with seaworthy packing and complete customs documentation.

Monel K‑500 (UNS N05500) Supply Scope & Heat Treatment Condition

• Solution Annealed (ST):​ 980–1040°C → WQ; soft (Rp0.2 ≈ 275–380 MPa), near non‑magnetic — for in‑house aging after machining.

• Solution Annealed + Aged (STA):​ ST + 580–600°C × 8–16 h → Rp0.2 ≥ 690 MPa (100 ksi grade), Rm ≥ 965 MPa, hardness 27–35 HRC — ready for installation. 110 ksi (≥ 758 MPa YS) grade available by selected arrangement.

Quality Assurance — What "High Quality" Means in Our Delivery

1. Positive Material Identification (PMI) — 100 % at Despatch

• Performed by XRF or OES on every bar / forging lot before packing.

• Verifies: Ni ≈ 63–70 %, Cu bal. (~27–33 %), Al 2.30–3.15 % & Ti 0.35–0.85 % detected​ — positively distinguishes N05500 from Monel 400 (no Al/Ti) and from stainless grades.

• PMI report / tag photo can be attached to commercial docs on request.

2. Ultrasonic Testing (UT) — Per ASTM A388

• Applied to bars and forgings ≥ 50 mm dia. (or per Purchase Order even on smaller sizes).

• Class typically Grade II recording (A/B — Customer option); straight‑beam (longitudinal) scan; reject level per AMS 2632 / ASTM A388 or as agreed.

• UT report references heat number, calibration block, gain setting and discontinuity record — included with shipment or sent digitally in advance.

3. Dimensional & Visual Inspection

• Diameter / length / flatness checked with calibrated gauges; forging envelope dims verified against drawing.

• Surface examined for forging laps, seams, excessive scale — minor surface conditioning allowed per spec; major imperfections rejected / re‑conditioned.

4. Heat Treatment Documentation

• MTC states exact solution anneal temperature & soak time + (if applicable) aging temperature & duration.

• For ST+Aged condition: tensile coupon taken from prolongation of same heat/lot, tested at room temperature — Rm ≥ 965 MPa, Rp0.2 ≥ 690 MPa, A₅ ≥ 15 %​ — actual values reported (not "typical").

• Charpy V‑notch @ −46°C or −73°C reported if specified in PO.

Third‑Party Witness (TPI) & EN 10204 3.2 — For Critical Projects

When your project requires independent verification (offshore, refinery, nuclear‑adjacent, government contract):

• We arrange SGS / TÜV / BV / DNV​ attendance at our works or nominated inspection point.

• Scope can include:

  • Visual / dimensional check

  • PMI re‑check by TPI

  • Witness of UT or review of UT report

  • Witness of tensile / impact test (or review of in‑house accredited lab report)

  • Verification of heat treatment charts / recorder strips

  • Sign‑off of EN 10204 3.2 Certificate

• TPI fees quoted separately; we coordinate scheduling to minimise lead impact (typically +3–7 days depending on inspector availability).

Certification Package You Receive (Standard vs. Premium)

Export Packing, Lead Time & Incoterms

• Packing:​ VCI paper wrap + hex‑strapped bundle (bars); individual bubble wrap + plywood case / skidded wooden crate (forgings/discs); stencil shows PO#, heat no., dims, net/gross weight, "KEEP DRY".

• Lead Time (from Shanghai stock):​

  • Cut bar + PMI: 1–3 working days

  • Rough turned bar + UT: 3–5 working days

  • Custom forging from stock billet: 10–20 working days

  • Mill order non‑stock: 4–8 weeks (quoted per inquiry)

• Incoterms:​ EXW Shanghai / FOB Shanghai / CIF / CFR / DAP (where permitted).

• We work with your nominated forwarder or recommend carriers for LCL, FCL and air freight; provide HS code & pre‑check export docs.

Why International Buyers Choose Shanghai COCESS for Monel K‑500

• No "Typical Value Only" MTC:​ We report actualmelt analysis & actualtensile results — fully traceable to heat number stamped on each piece.

• PMI as Standard Practice:​ Not an upsell — every N05500 lot gets positive ID before release, protecting you from grade confusion.

• UT & TPI Flexibility:​ From basic visual+PMI to full TÜV‑witnessed 3.2 package — scale QA to your project class.

• Stock Responsiveness:​ Common diameters Φ12–200 mm & forging billet in Shanghai warehouse — same‑day cut / next‑day PMI in many cases.

• Technical Backup:​ Advice on ST vs. ST+Aged selection, recommended aging cycle (580–600°C × 8–16 h), weld filler (ERNiCu‑7 / AWS A5.14), and hydrogen‑embrittlement precautions for high‑strength aged K‑500.

Request Monel K‑500 Quotation with QA Scope

Please provide:

UNS N05500 (Monel K‑500) + Form (Bar / Forging / Disc) + Dimensions (Dia. × Length or Forging Dwg No.) + Qty + Condition (ST or ST+Aged with YS grade — 100 ksi or 110 ksi) + Destination Port + Certification (3.1 std. or 3.2 with named TPI) + UT / PMI / Mag‑Perm / Hardness Cap if required

Shanghai COCESS Special Alloys Co., Ltd.

Email ： sales@cocessalloys.com